[FEATURE] Reduce Emails (Multiple Subscriptions)

[EFvS]

Currently, when multiple subscriptions with the same duration are ordered, the subscription module creates separate subscriptions for each item and sends individual emails for each subscription. This can result in customers receiving multiple emails, leading to confusion and inconvenience.

The ideal scenario would combining the subscriptions within a single order.

An easy improvement would be to merge the reminder emails for multiple subscriptions into a single email. For example, if a customer orders three subscriptions with the same duration in one transaction, they should receive only one email containing information about all three upcoming subscriptions.

[Frank-Magmodules]

Hello there, @EFvS! Thank you for your feature request. I want to assure you that I fully understand your request. We schedule emails using a cron job, which means there's a good chance we can address this with just one email notification. 

However, I'm currently investigating this further with the team to confirm. Rest assured, I'll share a solution with you shortly.